If you ever get tired of the rejection letters, do like I do and use Lulu.com to get your book done. I write for the joy of writing, and telling a story. If the grammar isn't quite right, then oh well, last time I checked, very few people speak "correctly" these days as it is. I've finished two novels in a series, half done with the third, a children's book and a book of short stories, and it's all fun until that point where it turns to work...you'll look over that manuscript a hundred times, then a hundred more, changing little things here and there until you drive yourself mad and hand it off to someone else to read and see if they can find anything wrong with it! But when it's all said and done, whether you get it published by a traditional house, go electronic with it for Kindle or Nook, or publish it yourself, there's still something special about having a few of them sitting in the bookshelf with your name on them.